We've been carrying this test internally for quite some time and I think it would be beneficial for everyone to include it in the upstream testsuite, too.
Tested on x86_64-linux, ok for trunk and 8.3? 2018-07-26 Marek Polacek <pola...@redhat.com> * 30_threads/condition_variable_any/cond.cc: New test. --- gcc/testsuite/30_threads/condition_variable_any/cond.cc +++ gcc/testsuite/30_threads/condition_variable_any/cond.cc @@ -0,0 +1,35 @@ +// { dg-do run } +// { dg-options "-pthread" } +// { dg-require-effective-target c++11 } +// { dg-require-effective-target pthread } +// { dg-require-gthreads "" } + +// Copyright (C) 2018 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + +#include <condition_variable> +#include <cstring> + +int main() +{ + const size_t sz = sizeof(std::condition_variable_any); + char garbage[sz]; + memset(garbage, 0xff, sz); + auto cond = new ((void*)garbage) std::condition_variable_any(); + cond->notify_all(); + cond->~condition_variable_any(); +}